CVE-2025-52376 Auth bypass in n/a
Attackers can bypass authentication to enable Telnet and gain administrative shell access on Nexxt Solutions Mesh Routers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-52376?
CVE-2025-52376 is a critical authentication bypass vulnerability in n/a, published on 15 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An authentication bypass vulnerability in the /web/um_open_telnet.cgi endpoint in Nexxt Solutions NCM-X1800 Mesh Router firmware UV1.2.7 and below, allowing an attacker to remotely enable the Telnet service without authentication, bypassing security controls. The Telnet server is then accessible with hard-coded credentials, allowing attackers to gain administrative shell access and execute arbitrary commands on the device.
Which versions are affected by CVE-2025-52376?
How do I fix CVE-2025-52376?
No fix has been published for CVE-2025-52376 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-52376 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-52376 exists.
Sources
Also known as GHSA-932h-pf5w-9584.